Reinaldo played 30 matches and scored 14 goals for the Brazilian national team between July 1975 and May 1985, including the 1978 FIFA World Cup, where he scored one goal against Sweden. He also scored the qualifying goal for Brazil’s participation in the 1982 FIFA World Cup held in Spain, but was not included on the team, apparently due to injury.
Reinaldo scored a club record of 255 goals for Clube Atlético Mineiro. He also averaged 1.55 goals per match in the 1977 season—scoring 28 goals in 18 matches— the record average for the Brazilian League, for which Atlético supporters nicknamed him The King ("o Rei", in Portuguese, which also served as a pun on his name). He won eight Campeonato Mineiro titles including six consecutively: in 1976, 1978–1983 and 1985.